Results 11 to 20 of about 148,749 (259)

Fuzzy topological analysis of pizza graph

AIMS Mathematics, 2023
Fuzzy topological indices are getting attention these days due to their vast applications in daily life. In crisp case, topological indices are beneficial in chemical graph theory but as far as fuzzy graph theory is concerned, fuzzy topological indices ...
Zeeshan Saleem Mufti , Ali Tabraiz, Qin Xin, Bander Almutairi, Rukhshanda Anjum   +4 more
doaj   +1 more source

Topological Descriptors and Polynomials for Analysing the Structure of Antimony Telluride

Journal of Mathematics, 2022
In a molecular network, molecules are correlated with numerical values, which are referred to as topological indices. The chemical and physical properties of chemical substances can be determined using topological indices.
Shahid Imran, Isra Muzammil, Niat Nigar, M. K. Siddiqui, E. Bashier   +4 more
doaj   +1 more source

M-Polynomials and Degree-Based Topological Indices of the Molecule Copper(I) Oxide

Journal of Chemistry, 2021
Topological indices are numerical parameters used to study the physical and chemical residences of compounds. Degree-based topological indices have been studied extensively and can be correlated with many properties of the understudy compounds.
Faryal Chaudhry, Iqra Shoukat, Deeba Afzal, Choonkil Park, Murat Cancan, Mohammad Reza Farahani   +5 more
doaj   +1 more source

QSPR Modeling of Fungicides Using Topological Descriptors

International Journal of Analytical Chemistry, 2023
A topological index is a real number that is obtained from a chemical graph’s structure. Determining the physiochemical and biological characteristics of a variety of medications is useful since it more accurately represents the theoretical ...
Saima Parveen, Fatima Saeed, Fozia Bashir Farooq, Nusrat Parveen, Nazeran Idrees, Sumiya Nasir, Rakotondrajao Fanja   +6 more
doaj   +1 more source

GTI-space : the space of generalized topological indices [PDF]

, 2008
A new extension of the generalized topological indices (GTI) approach is carried out torepresent 'simple' and 'composite' topological indices (TIs) in an unified way.
A.R Matamala, A.R Matamala, A.T Balaban, Adelio R. Matamala, B Zhou, D. Plavšić, D.J Klein, D.J Klein, D.J Klein, E Estrada, E Estrada, E. Estrada, E. Estrada, E. Estrada, E. Estrada, E. Estrada, Ernesto Estrada, G.G Cash, H Wiener, H.P Schultz, H.P Schultz, I Gutman, I Gutman, I Gutman, I Gutman, J. Gálvez, J. Gálvez, J.R Votano, M. Randić, M. Randić, O Ivanciuc, R Todeschini, R.F Brown, W.R. Müller, Z. Mihalić   +34 more
core   +1 more source

Eccentricity-Based Topological Invariants of Dominating David-Derived Networks

Journal of Chemistry, 2021
A topological index is a numerical descriptor of the molecular structure based on certain topological features of the corresponding molecular graph. Topological indices are scientific contemplations of a graph that outline its subatomic topology and are ...
Muhammad Imran, Mian Muhammad Zobair, Hani Shaker   +2 more
doaj   +1 more source

Multiplicative topological indices of honeycomb derived networks

Open Physics, 2019
Topological indices are the numerical values associated with chemical structures that correlate physico-chemical properties with structural properties.
Tang Jiang-Hua, Habib Mustafa, Younas Muhammad, Yousaf Muhammad, Nazeer Waqas   +4 more
doaj   +1 more source

Computation of Topological Indices of Some Special Graphs

Mathematics, 2018
There are several chemical indices that have been introduced in theoretical chemistry to measure the properties of molecular topology, such as distance-based topological indices, degree-based topological indices and counting-related topological indices ...
Mohammed Salaheldeen Abdelgader, Chunxiang Wang, Sarra Abdalrhman Mohammed   +2 more
doaj   +1 more source

On the topological matrix and topological indices

AKCE International Journal of Graphs and Combinatorics, 2020
The topological matrix of a graph are indexed by . If then the of is 1 and the of is 0 for otherwise. In this paper, an upper bound for this topological matrix is found and the weighted topological matrix is defined.
Gülistan Kaya Gök
doaj   +1 more source

Discovering new two-dimensional topological insulators from computational screening [PDF]

, 2019
We have performed a computational screening of topological two-dimensional (2D) materials from the Computational 2D Materials Database (C2DB) employing density functional theory.
Andersen, Erik, Deilmann, Thorsten, Okugawa, Takuya, Olsen, Thomas, Thygesen, Kristian S., Torelli, Daniele   +5 more
core   +2 more sources